!function (name, definition) {
    if (typeof define == 'function' && typeof define.amd  == 'object') define(definition);
    else this[name] = definition();
}('chai', function () {

// CommonJS require()

    function require(p){
        var path = require.resolve(p)
            , mod = require.modules[path];
        if (!mod) throw new Error('failed to require "' + p + '"');
        if (!mod.exports) {
            mod.exports = {};
            mod.call(mod.exports, mod, mod.exports, require.relative(path));
        }
        return mod.exports;
    }

    require.modules = {};

    require.resolve = function (path){
        var orig = path
            , reg = path + '.js'
            , index = path + '/index.js';
        return require.modules[reg] && reg
            || require.modules[index] && index
            || orig;
    };

    require.register = function (path, fn){
        require.modules[path] = fn;
    };

    require.relative = function (parent) {
        return function(p){
            if ('.' != p[0]) return require(p);

            var path = parent.split('/')
                , segs = p.split('/');
            path.pop();

            for (var i = 0; i < segs.length; i++) {
                var seg = segs[i];
                if ('..' == seg) path.pop();
                else if ('.' != seg) path.push(seg);
            }

            return require(path.join('/'));
        };
    };


    require.register("assertion.js", function(module, exports, require){
        /*!
         * chai
         * http://chaijs.com
         * Copyright(c) 2011-2012 Jake Luer <jake@alogicalparadox.com>
         * MIT Licensed
         */


        /*!
         * Module dependencies.
         */

        var AssertionError = require('./browser/error')
            , toString = Object.prototype.toString
            , util = require('./utils')
            , flag = util.flag;

        /*!
         * Module export.
         */

        module.exports = Assertion;


        /*!
         * Assertion Constructor
         *
         * Creates object for chaining.
         *
         * @api private
         */

        function Assertion (obj, msg, stack) {
            flag(this, 'ssfi', stack || arguments.callee);
            flag(this, 'object', obj);
            flag(this, 'message', msg);
        }

        /*!
         * ### Assertion.includeStack
         *
         * User configurable property, influences whether stack trace
         * is included in Assertion error message. Default of false
         * suppresses stack trace in the error message
         *
         *     Assertion.includeStack = true;  // enable stack on error
         *
         * @api public
         */

        Assertion.includeStack = false;

        Assertion.addProperty = function (name, fn) {
            util.addProperty(this.prototype, name, fn);
        };

        Assertion.addMethod = function (name, fn) {
            util.addMethod(this.prototype, name, fn);
        };

        Assertion.addChainableMethod = function (name, fn, chainingBehavior) {
            util.addChainableMethod(this.prototype, name, fn, chainingBehavior);
        };

        Assertion.overwriteProperty = function (name, fn) {
            util.overwriteProperty(this.prototype, name, fn);
        };

        Assertion.overwriteMethod = function (name, fn) {
            util.overwriteMethod(this.prototype, name, fn);
        };

        /*!
         * ### .assert(expression, message, negateMessage, expected, actual)
         *
         * Executes an expression and check expectations. Throws AssertionError for reporting if test doesn't pass.
         *
         * @name assert
         * @param {Philosophical} expression to be tested
         * @param {String} message to display if fails
         * @param {String} negatedMessage to display if negated expression fails
         * @param {Mixed} expected value (remember to check for negation)
         * @param {Mixed} actual (optional) will default to `this.obj`
         * @api private
         */

        Assertion.prototype.assert = function (expr, msg, negateMsg, expected, _actual) {
            var msg = util.getMessage(this, arguments)
                , actual = util.getActual(this, arguments)
                , ok = util.test(this, arguments);

            if (!ok) {
                throw new AssertionError({
                    message: msg
                    , actual: actual
                    , expected: expected
                    , stackStartFunction: (Assertion.includeStack) ? this.assert : flag(this, 'ssfi')
                });
            }
        };

        /*!
         *
         * ### ._obj
         *
         * Quick reference to stored `actual` value for plugin developers.
         *
         * @api private
         */

        Object.defineProperty(Assertion.prototype, '_obj',
            { get: function () {
                return flag(this, 'object');
            }
                , set: function (val) {
                flag(this, 'object', val);
            }
            });

        /**
         * ### Language Chains
         *
         * The following are provide as chainable getters to
         * improve the readability of your assertions. They
         * do not provide an testing capability unless they
         * have been overwritten by a plugin.
         *
         * **Chains**
         *
         * - to
         * - be
         * - been
         * - is
         * - and
         * - have
         * - with
         *
         * @name language chains
         * @api public
         */

        [ 'to', 'be', 'been'
            , 'is', 'and', 'have'
            , 'with' ].forEach(function (chain) {
                Object.defineProperty(Assertion.prototype, chain,
                    { get: function () {
                        return this;
                    }
                        , configurable: true
                    });
            });

        /**
         * ### .not
         *
         * Negates any of assertions following in the chain.
         *
         *     expect(foo).to.not.equal('bar');
         *     expect(goodFn).to.not.throw(Error);
         *     expect({ foo: 'baz' }).to.have.property('foo')
         *       .and.not.equal('bar');
         *
         * @name not
         * @api public
         */

        Object.defineProperty(Assertion.prototype, 'not',
            { get: function () {
                flag(this, 'negate', true);
                return this;
            }
                , configurable: true
            });

        /**
         * ### .deep
         *
         * Sets the `deep` flag, later used by the `equal` and
         * `property` assertions.
         *
         *     expect(foo).to.deep.equal({ bar: 'baz' });
         *     expect({ foo: { bar: { baz: 'quux' } } })
         *       .to.have.deep.property('foo.bar.baz', 'quux');
         *
         * @name deep
         * @api public
         */

        Object.defineProperty(Assertion.prototype, 'deep',
            { get: function () {
                flag(this, 'deep', true);
                return this;
            }
                , configurable: true
            });

        /**
         * ### .a(type)
         *
         * The `a` and `an` assertions are aliases that can be
         * used either as language chains or to assert a value's
         * type (as revealed by `Object.prototype.toString`).
         *
         *     // typeof
         *     expect('test').to.be.a('string');
         *     expect({ foo: 'bar' }).to.be.an('object');
         *     expect(null).to.be.a('null');
         *     expect(undefined).to.be.an('undefined');
         *
         *     // language chain
         *     expect(foo).to.be.an.instanceof(Foo);
         *
         * @name a
         * @alias an
         * @param {String} type
         * @api public
         */

        function an(type) {
            var obj = flag(this, 'object')
                , klassStart = type.charAt(0).toUpperCase()
                , klass = klassStart + type.slice(1)
                , article = ~[ 'A', 'E', 'I', 'O', 'U' ].indexOf(klassStart) ? 'an ' : 'a ';

            this.assert(
                '[object ' + klass + ']' === toString.call(obj)
                , 'expected #{this} to be ' + article + type
                , 'expected #{this} not to be ' + article + type
                , '[object ' + klass + ']'
                , toString.call(obj)
            );
        }

        Assertion.addChainableMethod('an', an);
        Assertion.addChainableMethod('a', an);

        /**
         * ### .include(value)
         *
         * The `include` and `contain` assertions can be used as either property
         * based language chains or as methods to assert the inclusion of an object
         * in an array or a substring in a string. When used as language chains,
         * they toggle the `contain` flag for the `keys` assertion.
         *
         *     expect([1,2,3]).to.include(2);
         *     expect('foobar').to.contain('foo');
         *     expect({ foo: 'bar', hello: 'universe' }).to.include.keys('foo');
         *
         * @name include
         * @alias contain
         * @param {Object|String|Number} obj
         * @api public
         */

        function includeChainingBehavior () {
            flag(this, 'contains', true);
        }

        function include (val) {
            var obj = flag(this, 'object')
            this.assert(
                ~obj.indexOf(val)
                , 'expected #{this} to include ' + util.inspect(val)
                , 'expected #{this} to not include ' + util.inspect(val));
        }

        Assertion.addChainableMethod('include', include, includeChainingBehavior);
        Assertion.addChainableMethod('contain', include, includeChainingBehavior);

        /**
         * ### .ok
         *
         * Asserts that the target is truthy.
         *
         *     expect('everthing').to.be.ok;
         *     expect(1).to.be.ok;
         *     expect(false).to.not.be.ok;
         *     expect(undefined).to.not.be.ok;
         *     expect(null).to.not.be.ok;
         *
         * @name ok
         * @api public
         */

        Object.defineProperty(Assertion.prototype, 'ok',
            { get: function () {
                this.assert(
                    flag(this, 'object')
                    , 'expected #{this} to be truthy'
                    , 'expected #{this} to be falsy');

                return this;
            }
                , configurable: true
            });

        /**
         * ### .true
         *
         * Asserts that the target is `true`.
         *
         *     expect(true).to.be.true;
         *     expect(1).to.not.be.true;
         *
         * @name true
         * @api public
         */

        Object.defineProperty(Assertion.prototype, 'true',
            { get: function () {
                this.assert(
                    true === flag(this, 'object')
                    , 'expected #{this} to be true'
                    , 'expected #{this} to be false'
                    , this.negate ? false : true
                );

                return this;
            }
                , configurable: true
            });

        /**
         * ### .false
         *
         * Asserts that the target is `false`.
         *
         *     expect(false).to.be.false;
         *     expect(0).to.not.be.false;
         *
         * @name false
         * @api public
         */

        Object.defineProperty(Assertion.prototype, 'false',
            { get: function () {
                this.assert(
                    false === flag(this, 'object')
                    , 'expected #{this} to be false'
                    , 'expected #{this} to be true'
                    , this.negate ? true : false
                );

                return this;
            }
                , configurable: true
            });

        /**
         * ### .null
         *
         * Asserts that the target is `null`.
         *
         *     expect(null).to.be.null;
         *     expect(undefined).not.to.be.null;
         *
         * @name null
         * @api public
         */

        Object.defineProperty(Assertion.prototype, 'null',
            { get: function () {
                this.assert(
                    null === flag(this, 'object')
                    , 'expected #{this} to be null'
                    , 'expected #{this} not to be null'
                    , this.negate ? false : true
                );

                return this;
            }
                , configurable: true
            });

        /**
         * ### .undefined
         *
         * Asserts that the target is `undefined`.
         *
         *      expect(undefined).to.be.undefined;
         *      expect(null).to.not.be.undefined;
         *
         * @name undefined
         * @api public
         */

        Object.defineProperty(Assertion.prototype, 'undefined',
            { get: function () {
                this.assert(
                    undefined === flag(this, 'object')
                    , 'expected #{this} to be undefined'
                    , 'expected #{this} not to be undefined'
                    , this.negate ? false : true
                );

                return this;
            }
                , configurable: true
            });

        /**
         * ### .exist
         *
         * Asserts that the target is neither `null` nor `undefined`.
         *
         *     var foo = 'hi'
         *       , bar = null
         *       , baz;
         *
         *     expect(foo).to.exist;
         *     expect(bar).to.not.exist;
         *     expect(baz).to.not.exist;
         *
         * @name exist
         * @api public
         */

        Object.defineProperty(Assertion.prototype, 'exist',
            { get: function () {
                this.assert(
                    null != flag(this, 'object')
                    , 'expected #{this} to exist'
                    , 'expected #{this} to not exist'
                );

                return this;
            }
                , configurable: true
            });

        /**
         * ### .empty
         *
         * Asserts that the target's length is `0`. For arrays, it checks
         * the `length` property. For objects, it gets the count of
         * enumerable keys.
         *
         *     expect([]).to.be.empty;
         *     expect('').to.be.empty;
         *     expect({}).to.be.empty;
         *
         * @name empty
         * @api public
         */

        Object.defineProperty(Assertion.prototype, 'empty',
            { get: function () {
                var obj = flag(this, 'object')
                    , expected = obj;

                if (Array.isArray(obj) || 'string' === typeof object) {
                    expected = obj.length;
                } else if (typeof obj === 'object') {
                    expected = Object.keys(obj).length;
                }

                this.assert(
                    !expected
                    , 'expected #{this} to be empty'
                    , 'expected #{this} not to be empty');

                return this;
            }
                , configurable: true
            });

        /**
         * ### .arguments
         *
         * Asserts that the target is an arguments object.
         *
         *     function test () {
 *       expect(arguments).to.be.arguments;
 *     }
         *
         * @name arguments
         * @alias Arguments
         * @api public
         */

        function checkArguments () {
            var obj = flag(this, 'object')
                , type = Object.prototype.toString.call(obj);
            this.assert(
                '[object Arguments]' === type
                , 'expected #{this} to be arguments but got ' + type
                , 'expected #{this} to not be arguments'
            );
        }

        Assertion.addProperty('arguments', checkArguments);
        Assertion.addProperty('Arguments', checkArguments);

        /**
         * ### .equal(value)
         *
         * Asserts that the target is strictly equal (`===`) to `value`.
         * Alternately, if the `deep` flag is set, asserts that
         * the target is deeply equal to `value`.
         *
         *     expect('hello').to.equal('hello');
         *     expect(42).to.equal(42);
         *     expect(1).to.not.equal(true);
         *     expect({ foo: 'bar' }).to.not.equal({ foo: 'bar' });
         *     expect({ foo: 'bar' }).to.deep.equal({ foo: 'bar' });
         *
         * @name equal
         * @param {Mixed} value
         * @api public
         */

        Assertion.prototype.equal = function (val) {
            var obj = flag(this, 'object');
            if (flag(this, 'deep')) {
                return this.eql(val);
            } else {
                this.assert(
                    val === obj
                    , 'expected #{this} to equal #{exp}'
                    , 'expected #{this} to not equal #{exp}'
                    , val);
            }

            return this;
        };

        /**
         * ### .eql(value)
         *
         * Asserts that the target is deeply equal to `value`.
         *
         *     expect({ foo: 'bar' }).to.eql({ foo: 'bar' });
         *     expect([ 1, 2, 3 ]).to.eql([ 1, 2, 3 ]);
         *
         * @name eql
         * @param {Mixed} value
         * @api public
         */

        Assertion.prototype.eql = function (obj) {
            this.assert(
                util.eql(obj, flag(this, 'object'))
                , 'expected #{this} to deeply equal #{exp}'
                , 'expected #{this} to not deeply equal #{exp}'
                , obj );

            return this;
        };

        /**
         * ### .above(value)
         *
         * Asserts that the target is greater than `value`.
         *
         *     expect(10).to.be.above(5);
         *
         * @name above
         * @alias gt
         * @param {Number} value
         * @api public
         */

        Assertion.prototype.above = function (val) {
            this.assert(
                flag(this, 'object') > val
                , 'expected #{this} to be above ' + val
                , 'expected #{this} to be below ' + val);

            return this;
        };

        /**
         * ### .below(value)
         *
         * Asserts that the target is less than `value`.
         *
         *     expect(5).to.be.below(10);
         *
         * @name below
         * @alias lt
         * @param {Number} value
         * @api public
         */

        Assertion.prototype.below = function (val) {
            this.assert(
                flag(this, 'object') < val
                , 'expected #{this} to be below ' + val
                , 'expected #{this} to be above ' + val);

            return this;
        };

        /**
         * ### .within(start, finish)
         *
         * Asserts that the target is within a range.
         *
         *     expect(7).to.be.within(5,10);
         *
         * @name within
         * @param {Number} start lowerbound inclusive
         * @param {Number} finish upperbound inclusive
         * @api public
         */

        Assertion.prototype.within = function (start, finish) {
            var obj = flag(this, 'object')
                , range = start + '..' + finish;

            this.assert(
                obj >= start && obj <= finish
                , 'expected #{this} to be within ' + range
                , 'expected #{this} to not be within ' + range);

            return this;
        };

        /**
         * ### .instanceof(constructor)
         *
         * Asserts that the target is an instance of `constructor`.
         *
         *     var Tea = function (name) { this.name = name; }
         *       , Chai = new Tea('chai');
         *
         *     expect(Chai).to.be.an.instanceof(Tea);
         *     expect([ 1, 2, 3 ]).to.be.instanceof(Array);
         *
         * @name instanceof
         * @param {Constructor} constructor
         * @alias instanceOf
         * @api public
         */

        Assertion.prototype.instanceOf = function (constructor) {
            var name = util.getName(constructor);
            this.assert(
                flag(this, 'object') instanceof constructor
                , 'expected #{this} to be an instance of ' + name
                , 'expected #{this} to not be an instance of ' + name);

            return this;
        };

        /**
         * ### .property(name, [value])
         *
         * Asserts that the target has a property `name`, optionally asserting that
         * the value of that property is strictly equal to  `value`.
         * If the `deep` flag is set, you can use dot- and bracket-notation for deep
         * references into objects and arrays.
         *
         *     // simple referencing
         *     var obj = { foo: 'bar' };
         *     expect(obj).to.have.property('foo');
         *     expect(obj).to.have.property('foo', 'bar');
         *     expect(obj).to.have.property('foo').to.be.a('string');
         *
         *     // deep referencing
         *     var deepObj = {
 *         green: { tea: 'matcha' }
 *       , teas: [ 'chai', 'matcha', { tea: 'konacha' } ]
 *     };

         *     expect(deepObj).to.have.deep.property('green.tea', 'matcha');
         *     expect(deepObj).to.have.deep.property('teas[1]', 'matcha');
         *     expect(deepObj).to.have.deep.property('teas[2].tea', 'konacha');
         *
         * @name property
         * @param {String} name
         * @param {Mixed} value (optional)
         * @returns value of property for chaining
         * @api public
         */

        Assertion.prototype.property = function (name, val) {
            var obj = flag(this, 'object')
                , value = flag(this, 'deep') ? util.getPathValue(name, obj) : obj[name]
                , descriptor = flag(this, 'deep') ? 'deep property ' : 'property '
                , negate = flag(this, 'negate');

            if (negate && undefined !== val) {
                if (undefined === value) {
                    throw new Error(util.inspect(obj) + ' has no ' + descriptor + util.inspect(name));
                }
            } else {
                this.assert(
                    undefined !== value
                    , 'expected #{this} to have a ' + descriptor + util.inspect(name)
                    , 'expected #{this} to not have ' + descriptor + util.inspect(name));
            }

            if (undefined !== val) {
                this.assert(
                    val === value
                    , 'expected #{this} to have a ' + descriptor + util.inspect(name) + ' of #{exp}, but got #{act}'
                    , 'expected #{this} to not have a ' + descriptor + util.inspect(name) + ' of #{act}'
                    , val
                    , value
                );
            }

            flag(this, 'object', value);
            return this;
        };

        /**
         * ### .ownProperty(name)
         *
         * Asserts that the target has an own property `name`.
         *
         *     expect('test').to.have.ownProperty('length');
         *
         * @name ownProperty
         * @alias haveOwnProperty
         * @param {String} name
         * @api public
         */

        Assertion.prototype.ownProperty = function (name) {
            var obj = flag(this, 'object');
            this.assert(
                obj.hasOwnProperty(name)
                , 'expected #{this} to have own property ' + util.inspect(name)
                , 'expected #{this} to not have own property ' + util.inspect(name));
            return this;
        };

        /**
         * ### .length(value)
         *
         * Asserts that the target's `length` property has the expected value.
         *
         *     expect([1,2,3]).to.have.length(3);
         *     expect('foobar').to.have.length(6);
         *
         * @name length
         * @alias lengthOf
         * @param {Number} length
         * @api public
         */

        Assertion.prototype.length = function (n) {
            var obj = flag(this, 'object');
            new Assertion(obj).to.have.property('length');
            var len = obj.length;

            this.assert(
                len == n
                , 'expected #{this} to have a length of #{exp} but got #{act}'
                , 'expected #{this} to not have a length of #{act}'
                , n
                , len
            );

            return this;
        };

        /**
         * ### .match(regexp)
         *
         * Asserts that the target matches a regular expression.
         *
         *     expect('foobar').to.match(/^foo/);
         *
         * @name match
         * @param {RegExp} RegularExpression
         * @api public
         */

        Assertion.prototype.match = function (re) {
            var obj = flag(this, 'object');
            this.assert(
                re.exec(obj)
                , 'expected #{this} to match ' + re
                , 'expected #{this} not to match ' + re);

            return this;
        };


        /**
         * ### .string(string)
         *
         * Asserts that the string target contains another string.
         *
         *     expect('foobar').to.have.string('bar');
         *
         * @name string
         * @param {String} string
         * @api public
         */

        Assertion.prototype.string = function (str) {
            var obj = flag(this, 'object');
            new Assertion(obj).is.a('string');

            this.assert(
                ~obj.indexOf(str)
                , 'expected #{this} to contain ' + util.inspect(str)
                , 'expected #{this} to not contain ' + util.inspect(str));

            return this;
        };

        /**
         * ### .keys(key1, [key2], [...])
         *
         * Asserts that the target has exactly the given keys, or
         * asserts the inclusion of some keys when using the
         * `include` or `contain` modifiers.
         *
         *     expect({ foo: 1, bar: 2 }).to.have.keys(['foo', 'bar']);
         *     expect({ foo: 1, bar: 2, baz: 3 }).to.contain.keys('foo', 'bar');
         *
         * @name keys
         * @alias key
         * @param {String...|Array} keys
         * @api public
         */

        Assertion.prototype.keys = function(keys) {
            var obj = flag(this, 'object')
                , str
                , ok = true;

            keys = keys instanceof Array
                ? keys
                : Array.prototype.slice.call(arguments);

            if (!keys.length) throw new Error('keys required');

            var actual = Object.keys(obj)
                , len = keys.length;

            // Inclusion
            ok = keys.every(function(key){
                return ~actual.indexOf(key);
            });

            // Strict
            if (!flag(this, 'negate') && !flag(this, 'contains')) {
                ok = ok && keys.length == actual.length;
            }

            // Key string
            if (len > 1) {
                keys = keys.map(function(key){
                    return util.inspect(key);
                });
                var last = keys.pop();
                str = keys.join(', ') + ', and ' + last;
            } else {
                str = util.inspect(keys[0]);
            }

            // Form
            str = (len > 1 ? 'keys ' : 'key ') + str;

            // Have / include
            str = (flag(this, 'contains') ? 'contain ' : 'have ') + str;

            // Assertion
            this.assert(
                ok
                , 'expected #{this} to ' + str
                , 'expected #{this} to not ' + str
                , keys
                , Object.keys(obj)
            );

            return this;
        }

        /**
         * ### .throw(constructor)
         *
         * Asserts that the function target will throw a specific error, or specific type of error
         * (as determined using `instanceof`), optionally with a RegExp or string inclusion test
         * for the error's message.
         *
         *     var err = new ReferenceError('This is a bad function.');
         *     var fn = function () { throw err; }
         *     expect(fn).to.throw(ReferenceError);
         *     expect(fn).to.throw(Error);
         *     expect(fn).to.throw(/bad function/);
         *     expect(fn).to.not.throw('good function');
         *     expect(fn).to.throw(ReferenceError, /bad function/);
         *     expect(fn).to.throw(err);
         *     expect(fn).to.not.throw(new RangeError('Out of range.'));
         *
         * Please note that when a throw expectation is negated, it will check each
         * parameter independently, starting with error constructor type. The appropriate way
         * to check for the existence of a type of error but for a message that does not match
         * is to use `and`.
         *
         *     expect(fn).to.throw(ReferenceError)
         *        .and.not.throw(/good function/);
         *
         * @name throw
         * @alias throws
         * @alias Throw
         * @param {ErrorConstructor} constructor
         * @see https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Error#Error_types
         * @api public
         */

        Assertion.prototype.Throw = function (constructor, msg) {
            var obj = flag(this, 'object');
            new Assertion(obj).is.a('function');

            var thrown = false
                , desiredError = null
                , name = null;

            if (arguments.length === 0) {
                msg = null;
                constructor = null;
            } else if (constructor && (constructor instanceof RegExp || 'string' === typeof constructor)) {
                msg = constructor;
                constructor = null;
            } else if (constructor && constructor instanceof Error) {
                desiredError = constructor;
                constructor = null;
                msg = null;
            } else if (typeof constructor === 'function') {
                name = (new constructor()).name;
            } else {
                constructor = null;
            }

            try {
                obj();
            } catch (err) {
                // first, check desired error
                if (desiredError) {
                    this.assert(
                        err === desiredError
                        , 'expected #{this} to throw ' + util.inspect(desiredError) + ' but ' + util.inspect(err) + ' was thrown'
                        , 'expected #{this} to not throw ' + util.inspect(desiredError)
                    );
                    return this;
                }
                // next, check constructor
                if (constructor) {
                    this.assert(
                        err instanceof constructor
                        , 'expected #{this} to throw ' + name + ' but a ' + err.name + ' was thrown'
                        , 'expected #{this} to not throw ' + name );
                    if (!msg) return this;
                }
                // next, check message
                if (err.message && msg && msg instanceof RegExp) {
                    this.assert(
                        msg.exec(err.message)
                        , 'expected #{this} to throw error matching ' + msg + ' but got ' + util.inspect(err.message)
                        , 'expected #{this} to throw error not matching ' + msg
                    );
                    return this;
                } else if (err.message && msg && 'string' === typeof msg) {
                    this.assert(
                        ~err.message.indexOf(msg)
                        , 'expected #{this} to throw error including #{exp} but got #{act}'
                        , 'expected #{this} to throw error not including #{act}'
                        , msg
                        , err.message
                    );
                    return this;
                } else {
                    thrown = true;
                }
            }

            var expectedThrown = name ? name : desiredError ? util.inspect(desiredError) : 'an error';

            this.assert(
                thrown === true
                , 'expected #{this} to throw ' + expectedThrown
                , 'expected #{this} to not throw ' + expectedThrown);

            return this;
        };

        /**
         * ### .respondTo(method)
         *
         * Asserts that the object or class target will respond to a method.
         *
         *     Klass.prototype.bar = function(){};
         *     expect(Klass).to.respondTo('bar');
         *     expect(obj).to.respondTo('bar');
         *
         * To check if a constructor will respond to a static function,
         * set the `itself` flag.
         *
         *    Klass.baz = function(){};
         *    expect(Klass).itself.to.respondTo('baz');
         *
         * @name respondTo
         * @param {String} method
         * @api public
         */

        Assertion.prototype.respondTo = function (method) {
            var obj = flag(this, 'object')
                , itself = flag(this, 'itself')
                , context = ('function' === typeof obj && !itself)
                    ? obj.prototype[method]
                    : obj[method];

            this.assert(
                'function' === typeof context
                , 'expected #{this} to respond to ' + util.inspect(method)
                , 'expected #{this} to not respond to ' + util.inspect(method)
                , 'function'
                , typeof context
            );

            return this;
        };

        /**
         * ### .itself
         *
         * Sets the `itself` flag, later used by the `respondTo` assertion.
         *
         *    function Foo() {}
         *    Foo.bar = function() {}
         *    Foo.prototype.baz = function() {}
         *
         *    expect(Foo).itself.to.respondTo('bar');
         *    expect(Foo).itself.not.to.respondTo('baz');
         *
         * @name itself
         * @api public
         */
        Object.defineProperty(Assertion.prototype, 'itself',
            { get: function () {
                flag(this, 'itself', true);
                return this;
            }
                , configurable: true
            });

        /**
         * ### .satisfy(method)
         *
         * Asserts that the target passes a given truth test.
         *
         *     expect(1).to.satisfy(function(num) { return num > 0; });
         *
         * @name satisfy
         * @param {Function} matcher
         * @api public
         */

        Assertion.prototype.satisfy = function (matcher) {
            var obj = flag(this, 'object');
            this.assert(
                matcher(obj)
                , 'expected #{this} to satisfy ' + util.inspect(matcher)
                , 'expected #{this} to not satisfy' + util.inspect(matcher)
                , this.negate ? false : true
                , matcher(obj)
            );

            return this;
        };

        /**
         * ### .closeTo(expected, delta)
         *
         * Asserts that the target is equal `expected`, to within a +/- `delta` range.
         *
         *     expect(1.5).to.be.closeTo(1, 0.5);
         *
         * @name closeTo
         * @param {Number} expected
         * @param {Number} delta
         * @api public
         */

        Assertion.prototype.closeTo = function (expected, delta) {
            var obj = flag(this, 'object');
            this.assert(
                (obj - delta === expected) || (obj + delta === expected)
                , 'expected #{this} to be close to ' + expected + ' +/- ' + delta
                , 'expected #{this} not to be close to ' + expected + ' +/- ' + delta);

            return this;
        };

        /*!
         * Aliases.
         */

        (function alias(name, as){
            Assertion.prototype[as] = Assertion.prototype[name];
            return alias;
        })
            ('equal', 'eq')
            ('above', 'gt')
            ('below', 'lt')
            ('length', 'lengthOf')
            ('keys', 'key')
            ('ownProperty', 'haveOwnProperty')
            ('above', 'greaterThan')
            ('below', 'lessThan')
            ('Throw', 'throws')
            ('Throw', 'throw')
            ('instanceOf', 'instanceof');

    }); // module: assertion.js

    require.register("browser/error.js", function(module, exports, require){
        /*!
         * chai
         * Copyright(c) 2011-2012 Jake Luer <jake@alogicalparadox.com>
         * MIT Licensed
         */

        module.exports = AssertionError;

        function AssertionError (options) {
            options = options || {};
            this.message = options.message;
            this.actual = options.actual;
            this.expected = options.expected;
            this.operator = options.operator;

            if (options.stackStartFunction && Error.captureStackTrace) {
                var stackStartFunction = options.stackStartFunction;
                Error.captureStackTrace(this, stackStartFunction);
            }
        }

        AssertionError.prototype = Object.create(Error.prototype);
        AssertionError.prototype.name = 'AssertionError';
        AssertionError.prototype.constructor = AssertionError;

        AssertionError.prototype.toString = function() {
            return this.message;
        };

    }); // module: browser/error.js

    require.register("chai.js", function(module, exports, require){
        /*!
         * chai
         * Copyright(c) 2011-2012 Jake Luer <jake@alogicalparadox.com>
         * MIT Licensed
         */

        var used = []
            , exports = module.exports = {};

        /*!
         * Chai version
         */

        exports.version = '1.0.4';

        /*!
         * Primary `Assertion` prototype
         */

        exports.Assertion = require('./assertion');

        /*!
         * Assertion Error
         */

        exports.AssertionError = require('./browser/error');

        /*!
         * Utils for plugins (not exported)
         */

        var util = require('./utils');

        /**
         * # .use(function)
         *
         * Provides a way to extend the internals of Chai
         *
         * @param {Function}
         * @returns {this} for chaining
         * @api public
         */

        exports.use = function (fn) {
            if (!~used.indexOf(fn)) {
                fn(this, util);
                used.push(fn);
            }

            return this;
        };

        /*!
         * Expect interface
         */

        var expect = require('./interface/expect');
        exports.use(expect);

        /*!
         * Should interface
         */

        var should = require('./interface/should');
        exports.use(should);

        /*!
         * Assert interface
         */

        var assert = require('./interface/assert');
        exports.use(assert);

    }); // module: chai.js

    require.register("interface/assert.js", function(module, exports, require){
        /*!
         * chai
         * Copyright(c) 2011-2012 Jake Luer <jake@alogicalparadox.com>
         * MIT Licensed
         */


        module.exports = function (chai, util) {

            /*!
             * Chai dependencies.
             */

            var Assertion = chai.Assertion
                , flag = util.flag;

            /*!
             * Module export.
             */

            /**
             * ### assert(expression, message)
             *
             * Write your own test expressions.
             *
             *     assert('foo' !== 'bar', 'foo is not bar');
             *     assert(Array.isArray([]), 'empty arrays are arrays');
             *
             * @param {Mixed} expression to test for truthiness
             * @param {String} message to display on error
             * @name assert
             * @api public
             */

            var assert = chai.assert = function (express, errmsg) {
                var test = new Assertion(null);
                test.assert(
                    express
                    , errmsg
                    , '[ negation message unavailable ]'
                );
            };

            /**
             * ### .fail(actual, expected, [message], [operator])
             *
             * Throw a failure. Node.js `assert` module-compatible.
             *
             * @name fail
             * @param {Mixed} actual
             * @param {Mixed} expected
             * @param {String} message
             * @param {String} operator
             * @api public
             */

            assert.fail = function (actual, expected, message, operator) {
                throw new chai.AssertionError({
                    actual: actual
                    , expected: expected
                    , message: message
                    , operator: operator
                    , stackStartFunction: assert.fail
                });
            };

            /**
             * ### .ok(object, [message])
             *
             * Asserts that `object` is truthy.
             *
             *     assert.ok('everything', 'everything is ok');
             *     assert.ok(false, 'this will fail');
             *
             * @name ok
             * @param {Mixed} object to test
             * @param {String} message
             * @api public
             */

            assert.ok = function (val, msg) {
                new Assertion(val, msg).is.ok;
            };

            /**
             * ### .equal(actual, expected, [message])
             *
             * Asserts non-strict equality (`==`) of `actual` and `expected`.
             *
             *     assert.equal(3, '3', '== coerces values to strings');
             *
             * @name equal
             * @param {Mixed} actual
             * @param {Mixed} expected
             * @param {String} message
             * @api public
             */

            assert.equal = function (act, exp, msg) {
                var test = new Assertion(act, msg);

                test.assert(
                    exp == flag(test, 'object')
                    , 'expected #{this} to equal #{exp}'
                    , 'expected #{this} to not equal #{act}'
                    , exp
                    , act
                );
            };

            /**
             * ### .notEqual(actual, expected, [message])
             *
             * Asserts non-strict inequality (`!=`) of `actual` and `expected`.
             *
             *     assert.notEqual(3, 4, 'these numbers are not equal');
             *
             * @name notEqual
             * @param {Mixed} actual
             * @param {Mixed} expected
             * @param {String} message
             * @api public
             */

            assert.notEqual = function (act, exp, msg) {
                var test = new Assertion(act, msg);

                test.assert(
                    exp != flag(test, 'object')
                    , 'expected #{this} to not equal #{exp}'
                    , 'expected #{this} to equal #{act}'
                    , exp
                    , act
                );
            };

            /**
             * ### .strictEqual(actual, expected, [message])
             *
             * Asserts strict equality (`===`) of `actual` and `expected`.
             *
             *     assert.strictEqual(true, true, 'these booleans are strictly equal');
             *
             * @name strictEqual
             * @param {Mixed} actual
             * @param {Mixed} expected
             * @param {String} message
             * @api public
             */

            assert.strictEqual = function (act, exp, msg) {
                new Assertion(act, msg).to.equal(exp);
            };

            /**
             * ### .notStrictEqual(actual, expected, [message])
             *
             * Asserts strict inequality (`!==`) of `actual` and `expected`.
             *
             *     assert.notStrictEqual(3, '3', 'no coercion for strict equality');
             *
             * @name notStrictEqual
             * @param {Mixed} actual
             * @param {Mixed} expected
             * @param {String} message
             * @api public
             */

            assert.notStrictEqual = function (act, exp, msg) {
                new Assertion(act, msg).to.not.equal(exp);
            };

            /**
             * ### .deepEqual(actual, expected, [message])
             *
             * Asserts that `actual` is deeply equal to `expected`.
             *
             *     assert.deepEqual({ tea: 'green' }, { tea: 'green' });
             *
             * @name deepEqual
             * @param {Mixed} actual
             * @param {Mixed} expected
             * @param {String} message
             * @api public
             */

            assert.deepEqual = function (act, exp, msg) {
                new Assertion(act, msg).to.eql(exp);
            };

            /**
             * ### .notDeepEqual(actual, expected, [message])
             *
             * Assert that `actual` is not deeply equal to `expected`.
             *
             *     assert.notDeepEqual({ tea: 'green' }, { tea: 'jasmine' });
             *
             * @name notDeepEqual
             * @param {Mixed} actual
             * @param {Mixed} expected
             * @param {String} message
             * @api public
             */

            assert.notDeepEqual = function (act, exp, msg) {
                new Assertion(act, msg).to.not.eql(exp);
            };

            /**
             * ### .isTrue(value, [message])
             *
             * Asserts that `value` is true.
             *
             *     var teaServed = true;
             *     assert.isTrue(teaServed, 'the tea has been served');
             *
             * @name isTrue
             * @param {Mixed} value
             * @param {String} message
             * @api public
             */

            assert.isTrue = function (val, msg) {
                new Assertion(val, msg).is['true'];
            };

            /**
             * ### .isFalse(value, [message])
             *
             * Asserts that `value` is false.
             *
             *     var teaServed = false;
             *     assert.isFalse(teaServed, 'no tea yet? hmm...');
             *
             * @name isFalse
             * @param {Mixed} value
             * @param {String} message
             * @api public
             */

            assert.isFalse = function (val, msg) {
                new Assertion(val, msg).is['false'];
            };

            /**
             * ### .isNull(value, [message])
             *
             * Asserts that `value` is null.
             *
             *     assert.isNull(err, 'there was no error');
             *
             * @name isNull
             * @param {Mixed} value
             * @param {String} message
             * @api public
             */

            assert.isNull = function (val, msg) {
                new Assertion(val, msg).to.equal(null);
            };

            /**
             * ### .isNotNull(value, [message])
             *
             * Asserts that `value` is not null.
             *
             *     var tea = 'tasty chai';
             *     assert.isNotNull(tea, 'great, time for tea!');
             *
             * @name isNotNull
             * @param {Mixed} value
             * @param {String} message
             * @api public
             */

            assert.isNotNull = function (val, msg) {
                new Assertion(val, msg).to.not.equal(null);
            };

            /**
             * ### .isUndefined(value, [message])
             *
             * Asserts that `value` is `undefined`.
             *
             *     var tea;
             *     assert.isUndefined(tea, 'no tea defined');
             *
             * @name isUndefined
             * @param {Mixed} value
             * @param {String} message
             * @api public
             */

            assert.isUndefined = function (val, msg) {
                new Assertion(val, msg).to.equal(undefined);
            };

            /**
             * ### .isDefined(value, [message])
             *
             * Asserts that `value` is not `undefined`.
             *
             *     var tea = 'cup of chai';
             *     assert.isDefined(tea, 'tea has been defined');
             *
             * @name isUndefined
             * @param {Mixed} value
             * @param {String} message
             * @api public
             */

            assert.isDefined = function (val, msg) {
                new Assertion(val, msg).to.not.equal(undefined);
            };

            /**
             * ### .isFunction(value, [message])
             *
             * Asserts that `value` is a function.
             *
             *     function serveTea() { return 'cup of tea'; };
             *     assert.isFunction(serveTea, 'great, we can have tea now');
             *
             * @name isFunction
             * @param {Mixed} value
             * @param {String} message
             * @api public
             */

            assert.isFunction = function (val, msg) {
                new Assertion(val, msg).to.be.a('function');
            };

            /**
             * ### .isNotFunction(value, [message])
             *
             * Asserts that `value` is _not_ a function.
             *
             *     var serveTea = [ 'heat', 'pour', 'sip' ];
             *     assert.isNotFunction(serveTea, 'great, we have listed the steps');
             *
             * @name isNotFunction
             * @param {Mixed} value
             * @param {String} message
             * @api public
             */

            assert.isNotFunction = function (val, msg) {
                new Assertion(val, msg).to.not.be.a('function');
            };

            /**
             * ### .isObject(value, [message])
             *
             * Asserts that `value` is an object (as revealed by
             * `Object.prototype.toString`).
             *
             *     var selection = { name: 'Chai', serve: 'with spices' };
             *     assert.isObject(selection, 'tea selection is an object');
             *
             * @name isObject
             * @param {Mixed} value
             * @param {String} message
             * @api public
             */

            assert.isObject = function (val, msg) {
                new Assertion(val, msg).to.be.a('object');
            };

            /**
             * ### .isNotObject(value, [message])
             *
             * Asserts that `value` is _not_ an object.
             *
             *     var selection = 'chai'
             *     assert.isObject(selection, 'tea selection is not an object');
             *     assert.isObject(null, 'null is not an object');
             *
             * @name isNotObject
             * @param {Mixed} value
             * @param {String} message
             * @api public
             */

            assert.isNotObject = function (val, msg) {
                new Assertion(val, msg).to.not.be.a('object');
            };

            /**
             * ### .isArray(value, [message])
             *
             * Asserts that `value` is an array.
             *
             *     var menu = [ 'green', 'chai', 'oolong' ];
             *     assert.isArray(menu, 'what kind of tea do we want?');
             *
             * @name isArray
             * @param {Mixed} value
             * @param {String} message
             * @api public
             */

            assert.isArray = function (val, msg) {
                new Assertion(val, msg).to.be.an('array');
            };

            /**
             * ### .isNotArray(value, [message])
             *
             * Asserts that `value` is _not_ an array.
             *
             *     var menu = 'green|chai|oolong';
             *     assert.isNotArray(menu, 'what kind of tea do we want?');
             *
             * @name isNotArray
             * @param {Mixed} value
             * @param {String} message
             * @api public
             */

            assert.isNotArray = function (val, msg) {
                new Assertion(val, msg).to.not.be.an('array');
            };

            /**
             * ### .isString(value, [message])
             *
             * Asserts that `value` is a string.
             *
             *     var teaOrder = 'chai';
             *     assert.isString(teaOrder, 'order placed');
             *
             * @name isString
             * @param {Mixed} value
             * @param {String} message
             * @api public
             */

            assert.isString = function (val, msg) {
                new Assertion(val, msg).to.be.a('string');
            };

            /**
             * ### .isNotString(value, [message])
             *
             * Asserts that `value` is _not_ a string.
             *
             *     var teaOrder = 4;
             *     assert.isNotString(teaOrder, 'order placed');
             *
             * @name isNotString
             * @param {Mixed} value
             * @param {String} message
             * @api public
             */

            assert.isNotString = function (val, msg) {
                new Assertion(val, msg).to.not.be.a('string');
            };

            /**
             * ### .isNumber(value, [message])
             *
             * Asserts that `value` is a number.
             *
             *     var cups = 2;
             *     assert.isNumber(cups, 'how many cups');
             *
             * @name isNumber
             * @param {Number} value
             * @param {String} message
             * @api public
             */

            assert.isNumber = function (val, msg) {
                new Assertion(val, msg).to.be.a('number');
            };

            /**
             * ### .isNotNumber(value, [message])
             *
             * Asserts that `value` is _not_ a number.
             *
             *     var cups = '2 cups please';
             *     assert.isNotNumber(cups, 'how many cups');
             *
             * @name isNotNumber
             * @param {Mixed} value
             * @param {String} message
             * @api public
             */

            assert.isNotNumber = function (val, msg) {
                new Assertion(val, msg).to.not.be.a('number');
            };

            /**
             * ### .isBoolean(value, [message])
             *
             * Asserts that `value` is a boolean.
             *
             *     var teaReady = true
             *       , teaServed = false;
             *
             *     assert.isBoolean(teaReady, 'is the tea ready');
             *     assert.isBoolean(teaServed, 'has tea been served');
             *
             * @name isBoolean
             * @param {Mixed} value
             * @param {String} message
             * @api public
             */

            assert.isBoolean = function (val, msg) {
                new Assertion(val, msg).to.be.a('boolean');
            };

            /**
             * ### .isNotBoolean(value, [message])
             *
             * Asserts that `value` is _not_ a boolean.
             *
             *     var teaReady = 'yep'
             *       , teaServed = 'nope';
             *
             *     assert.isNotBoolean(teaReady, 'is the tea ready');
             *     assert.isNotBoolean(teaServed, 'has tea been served');
             *
             * @name isNotBoolean
             * @param {Mixed} value
             * @param {String} message
             * @api public
             */

            assert.isNotBoolean = function (val, msg) {
                new Assertion(val, msg).to.not.be.a('boolean');
            };

            /**
             * ### .typeOf(value, name, [message])
             *
             * Asserts that `value`'s type is `name`, as determined by
             * `Object.prototype.toString`.
             *
             *     assert.typeOf({ tea: 'chai' }, 'object', 'we have an object');
             *     assert.typeOf(['chai', 'jasmine'], 'array', 'we have an array');
             *     assert.typeOf('tea', 'string', 'we have a string');
             *     assert.typeOf(/tea/, 'regexp', 'we have a regular expression');
             *     assert.typeOf(null, 'null', 'we have a null');
             *     assert.typeOf(undefined, 'undefined', 'we have an undefined');
             *
             * @name typeOf
             * @param {Mixed} value
             * @param {String} name
             * @param {String} message
             * @api public
             */

            assert.typeOf = function (val, type, msg) {
                new Assertion(val, msg).to.be.a(type);
            };

            /**
             * ### .notTypeOf(value, name, [message])
             *
             * Asserts that `value`'s type is _not_ `name`, as determined by
             * `Object.prototype.toString`.
             *
             *     assert.notTypeOf('tea', 'number', 'strings are not numbers');
             *
             * @name notTypeOf
             * @param {Mixed} value
             * @param {String} typeof name
             * @param {String} message
             * @api public
             */

            assert.notTypeOf = function (val, type, msg) {
                new Assertion(val, msg).to.not.be.a(type);
            };

            /**
             * ### .instanceOf(object, constructor, [message])
             *
             * Asserts that `value` is an instance of `constructor`.
             *
             *     var Tea = function (name) { this.name = name; }
             *       , chai = new Tea('chai');
             *
             *     assert.instanceOf(chai, Tea, 'chai is an instance of tea');
             *
             * @name instanceOf
             * @param {Object} object
             * @param {Constructor} constructor
             * @param {String} message
             * @api public
             */

            assert.instanceOf = function (val, type, msg) {
                new Assertion(val, msg).to.be.instanceOf(type);
            };

            /**
             * ### .notInstanceOf(object, constructor, [message])
             *
             * Asserts `value` is not an instance of `constructor`.
             *
             *     var Tea = function (name) { this.name = name; }
             *       , chai = new String('chai');
             *
             *     assert.notInstanceOf(chai, Tea, 'chai is not an instance of tea');
             *
             * @name notInstanceOf
             * @param {Object} object
             * @param {Constructor} constructor
             * @param {String} message
             * @api public
             */

            assert.notInstanceOf = function (val, type, msg) {
                new Assertion(val, msg).to.not.be.instanceOf(type);
            };

            /**
             * ### .include(haystack, needle, [message])
             *
             * Asserts that `haystack` includes `needle`. Works
             * for strings and arrays.
             *
             *     assert.include('foobar', 'bar', 'foobar contains string "bar"');
             *     assert.include([ 1, 2, 3 ], 3, 'array contains value');
             *
             * @name include
             * @param {Array|String} haystack
             * @param {Mixed} needle
             * @param {String} message
             * @api public
             */

            assert.include = function (exp, inc, msg) {
                var obj = new Assertion(exp, msg);

                if (Array.isArray(exp)) {
                    obj.to.include(inc);
                } else if ('string' === typeof exp) {
                    obj.to.contain.string(inc);
                }
            };

            /**
             * ### .match(value, regexp, [message])
             *
             * Asserts that `value` matches the regular expression `regexp`.
             *
             *     assert.match('foobar', /^foo/, 'regexp matches');
             *
             * @name match
             * @param {Mixed} value
             * @param {RegExp} regexp
             * @param {String} message
             * @api public
             */

            assert.match = function (exp, re, msg) {
                new Assertion(exp, msg).to.match(re);
            };

            /**
             * ### .notMatch(value, regexp, [message])
             *
             * Asserts that `value` does not match the regular expression `regexp`.
             *
             *     assert.notMatch('foobar', /^foo/, 'regexp does not match');
             *
             * @name notMatch
             * @param {Mixed} value
             * @param {RegExp} regexp
             * @param {String} message
             * @api public
             */

            assert.notMatch = function (exp, re, msg) {
                new Assertion(exp, msg).to.not.match(re);
            };

            /**
             * ### .property(object, property, [message])
             *
             * Asserts that `object` has a property named by `property`.
             *
             *     assert.property({ tea: { green: 'matcha' }}, 'tea');
             *
             * @name property
             * @param {Object} object
             * @param {String} property
             * @param {String} message
             * @api public
             */

            assert.property = function (obj, prop, msg) {
                new Assertion(obj, msg).to.have.property(prop);
            };

            /**
             * ### .notProperty(object, property, [message])
             *
             * Asserts that `object` does _not_ have a property named by `property`.
             *
             *     assert.notProperty({ tea: { green: 'matcha' }}, 'coffee');
             *
             * @name notProperty
             * @param {Object} object
             * @param {String} property
             * @param {String} message
             * @api public
             */

            assert.notProperty = function (obj, prop, msg) {
                new Assertion(obj, msg).to.not.have.property(prop);
            };

            /**
             * ### .deepProperty(object, property, [message])
             *
             * Asserts that `object` has a property named by `property`, which can be a
             * string using dot- and bracket-notation for deep reference.
             *
             *     assert.deepProperty({ tea: { green: 'matcha' }}, 'tea.green');
             *
             * @name deepProperty
             * @param {Object} object
             * @param {String} property
             * @param {String} message
             * @api public
             */

            assert.deepProperty = function (obj, prop, msg) {
                new Assertion(obj, msg).to.have.deep.property(prop);
            };

            /**
             * ### .notDeepProperty(object, property, [message])
             *
             * Asserts that `object` does _not_ have a property named by `property`, which
             * can be a string using dot- and bracket-notation for deep reference.
             *
             *     assert.notDeepProperty({ tea: { green: 'matcha' }}, 'tea.oolong');
             *
             * @name notDeepProperty
             * @param {Object} object
             * @param {String} property
             * @param {String} message
             * @api public
             */

            assert.notDeepProperty = function (obj, prop, msg) {
                new Assertion(obj, msg).to.not.have.deep.property(prop);
            };

            /**
             * ### .propertyVal(object, property, value, [message])
             *
             * Asserts that `object` has a property named by `property` with value given
             * by `value`.
             *
             *     assert.propertyVal({ tea: 'is good' }, 'tea', 'is good');
             *
             * @name propertyVal
             * @param {Object} object
             * @param {String} property
             * @param {Mixed} value
             * @param {String} message
             * @api public
             */

            assert.propertyVal = function (obj, prop, val, msg) {
                new Assertion(obj, msg).to.have.property(prop, val);
            };

            /**
             * ### .propertyNotVal(object, property, value, [message])
             *
             * Asserts that `object` has a property named by `property`, but with a value
             * different from that given by `value`.
             *
             *     assert.propertyNotVal({ tea: 'is good' }, 'tea', 'is bad');
             *
             * @name propertyNotVal
             * @param {Object} object
             * @param {String} property
             * @param {Mixed} value
             * @param {String} message
             * @api public
             */

            assert.propertyNotVal = function (obj, prop, val, msg) {
                new Assertion(obj, msg).to.not.have.property(prop, val);
            };

            /**
             * ### .deepPropertyVal(object, property, value, [message])
             *
             * Asserts that `object` has a property named by `property` with value given
             * by `value`. `property` can use dot- and bracket-notation for deep
             * reference.
             *
             *     assert.deepPropertyVal({ tea: { green: 'matcha' }}, 'tea.green', 'matcha');
             *
             * @name deepPropertyVal
             * @param {Object} object
             * @param {String} property
             * @param {Mixed} value
             * @param {String} message
             * @api public
             */

            assert.deepPropertyVal = function (obj, prop, val, msg) {
                new Assertion(obj, msg).to.have.deep.property(prop, val);
            };

            /**
             * ### .deepPropertyNotVal(object, property, value, [message])
             *
             * Asserts that `object` has a property named by `property`, but with a value
             * different from that given by `value`. `property` can use dot- and
             * bracket-notation for deep reference.
             *
             *     assert.deepPropertyNotVal({ tea: { green: 'matcha' }}, 'tea.green', 'konacha');
             *
             * @name deepPropertyNotVal
             * @param {Object} object
             * @param {String} property
             * @param {Mixed} value
             * @param {String} message
             * @api public
             */

            assert.deepPropertyNotVal = function (obj, prop, val, msg) {
                new Assertion(obj, msg).to.not.have.deep.property(prop, val);
            };

            /**
             * ### .lengthOf(object, length, [message])
             *
             * Asserts that `object` has a `length` property with the expected value.
             *
             *     assert.lengthOf([1,2,3], 3, 'array has length of 3');
             *     assert.lengthOf('foobar', 5, 'string has length of 6');
             *
             * @name lengthOf
             * @param {Mixed} object
             * @param {Number} length
             * @param {String} message
             * @api public
             */

            assert.lengthOf = function (exp, len, msg) {
                new Assertion(exp, msg).to.have.length(len);
            };

            /**
             * ### .throws(function, [constructor/regexp], [message])
             *
             * Asserts that `function` will throw an error that is an instance of
             * `constructor`, or alternately that it will throw an error with message
             * matching `regexp`.
             *
             *     assert.throw(fn, ReferenceError, 'function throws a reference error');
             *
             * @name throws
             * @alias throw
             * @alias Throw
             * @param {Function} function
             * @param {ErrorConstructor} constructor
             * @param {RegExp} regexp
             * @param {String} message
             * @see https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Error#Error_types
             * @api public
             */

            assert.Throw = function (fn, type, msg) {
                if ('string' === typeof type) {
                    msg = type;
                    type = null;
                }

                new Assertion(fn, msg).to.Throw(type);
            };

            /**
             * ### .doesNotThrow(function, [constructor/regexp], [message])
             *
             * Asserts that `function` will _not_ throw an error that is an instance of
             * `constructor`, or alternately that it will not throw an error with message
             * matching `regexp`.
             *
             *     assert.doesNotThrow(fn, Error, 'function does not throw');
             *
             * @name doesNotThrow
             * @param {Function} function
             * @param {ErrorConstructor} constructor
             * @param {RegExp} regexp
             * @param {String} message
             * @see https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Error#Error_types
             * @api public
             */

            assert.doesNotThrow = function (fn, type, msg) {
                if ('string' === typeof type) {
                    msg = type;
                    type = null;
                }

                new Assertion(fn, msg).to.not.Throw(type);
            };

            /**
             * ### .operator(val1, operator, val2, [message])
             *
             * Compares two values using `operator`.
             *
             *     assert.operator(1, '<', 2, 'everything is ok');
             *     assert.operator(1, '>', 2, 'this will fail');
             *
             * @name operator
             * @param {Mixed} val1
             * @param {String} operator
             * @param {Mixed} val2
             * @param {String} message
             * @api public
             */

            assert.operator = function (val, operator, val2, msg) {
                if (!~['==', '===', '>', '>=', '<', '<=', '!=', '!=='].indexOf(operator)) {
                    throw new Error('Invalid operator "' + operator + '"');
                }
                var test = new Assertion(eval(val + operator + val2), msg);
                test.assert(
                    true === flag(test, 'object')
                    , 'expected ' + util.inspect(val) + ' to be ' + operator + ' ' + util.inspect(val2)
                    , 'expected ' + util.inspect(val) + ' to not be ' + operator + ' ' + util.inspect(val2) );
            };

            /*!
             * Undocumented / untested
             */

            assert.ifError = function (val, msg) {
                new Assertion(val, msg).to.not.be.ok;
            };

            /*!
             * Aliases.
             */

            (function alias(name, as){
                assert[as] = assert[name];
                return alias;
            })
                ('Throw', 'throw')
                ('Throw', 'throws');
        };

    }); // module: interface/assert.js

    require.register("interface/expect.js", function(module, exports, require){
        /*!
         * chai
         * Copyright(c) 2011-2012 Jake Luer <jake@alogicalparadox.com>
         * MIT Licensed
         */

        module.exports = function (chai, util) {
            chai.expect = function (val, message) {
                return new chai.Assertion(val, message);
            };
        };


    }); // module: interface/expect.js

    require.register("interface/should.js", function(module, exports, require){
        /*!
         * chai
         * Copyright(c) 2011-2012 Jake Luer <jake@alogicalparadox.com>
         * MIT Licensed
         */

        module.exports = function (chai, util) {
            var Assertion = chai.Assertion;

            function loadShould () {
                // modify Object.prototype to have `should`
                Object.defineProperty(Object.prototype, 'should',
                    { set: function () {}
                        , get: function(){
                        if (this instanceof String || this instanceof Number) {
                            return new Assertion(this.constructor(this));
                        } else if (this instanceof Boolean) {
                            return new Assertion(this == true);
                        }
                        return new Assertion(this);
                    }
                        , configurable: true
                    });

                var should = {};

                should.equal = function (val1, val2) {
                    new Assertion(val1).to.equal(val2);
                };

                should.Throw = function (fn, errt, errs) {
                    new Assertion(fn).to.Throw(errt, errs);
                };

                should.exist = function (val) {
                    new Assertion(val).to.exist;
                }

                // negation
                should.not = {}

                should.not.equal = function (val1, val2) {
                    new Assertion(val1).to.not.equal(val2);
                };

                should.not.Throw = function (fn, errt, errs) {
                    new Assertion(fn).to.not.Throw(errt, errs);
                };

                should.not.exist = function (val) {
                    new Assertion(val).to.not.exist;
                }

                should['throw'] = should['Throw'];
                should.not['throw'] = should.not['Throw'];

                return should;
            };

            chai.should = loadShould;
            chai.Should = loadShould;
        };

    }); // module: interface/should.js

    require.register("utils/addChainableMethod.js", function(module, exports, require){
        /*!
         * Chai - addChainingMethod utility
         * Copyright(c) 2012 Jake Luer <jake@alogicalparadox.com>
         * MIT Licensed
         */

        /*!
         * Module dependencies
         */

        var transferFlags = require('./transferFlags');

        /**
         * ### addChainableMethod (ctx, name, method, chainingBehavior)
         *
         * Adds a method to an object, such that the method can also be chained.
         *
         *     utils.addChainableMethod(chai.Assertion.prototype, 'foo', function (str) {
 *       var obj = utils.flag(this, 'object');
 *       new chai.Assertion(obj).to.be.equal(str);
 *     });
         *
         * Can also be accessed directly from `chai.Assertion`.
         *
         *     chai.Assertion.addChainableMethod('foo', fn, chainingBehavior);
         *
         * The result can then be used as both a method assertion, executing both `method` and
         * `chainingBehavior`, or as a language chain, which only executes `chainingBehavior`.
         *
         *     expect(fooStr).to.be.foo('bar');
         *     expect(fooStr).to.be.foo.equal('foo');
         *
         * @param {Object} ctx object to which the method is added
         * @param {String} name of method to add
         * @param {Function} method function to be used for `name`, when called
         * @param {Function} chainingBehavior function to be called every time the property is accessed
         * @name addChainableMethod
         * @api public
         */

        module.exports = function (ctx, name, method, chainingBehavior) {
            if (typeof chainingBehavior !== 'function')
                chainingBehavior = function () { };

            Object.defineProperty(ctx, name,
                { get: function () {
                    chainingBehavior.call(this);

                    var assert = function () {
                        var result = method.apply(this, arguments);
                        return result === undefined ? this : result;
                    };

                    // Re-enumerate every time to better accomodate plugins.
                    var asserterNames = Object.getOwnPropertyNames(ctx);
                    asserterNames.forEach(function (asserterName) {
                        var pd = Object.getOwnPropertyDescriptor(ctx, asserterName)
                            , functionProtoPD = Object.getOwnPropertyDescriptor(Function.prototype, asserterName);
                        // Avoid trying to overwrite things that we can't, like `length` and `arguments`.
                        if (functionProtoPD && !functionProtoPD.configurable) return;
                        if (asserterName === 'arguments') return; // @see chaijs/chai/issues/69
                        Object.defineProperty(assert, asserterName, pd);
                    });

                    transferFlags(this, assert);
                    return assert;
                }
                    , configurable: true
                });
        };

    }); // module: utils/addChainableMethod.js

    require.register("utils/addMethod.js", function(module, exports, require){
        /*!
         * Chai - addMethod utility
         * Copyright(c) 2012 Jake Luer <jake@alogicalparadox.com>
         * MIT Licensed
         */

        /**
         * ### addMethod (ctx, name, method)
         *
         * Adds a method to the prototype of an object.
         *
         *     utils.addMethod(chai.Assertion.prototype, 'foo', function (str) {
 *       var obj = utils.flag(this, 'object');
 *       new chai.Assertion(obj).to.be.equal(str);
 *     });
         *
         * Can also be accessed directly from `chai.Assertion`.
         *
         *     chai.Assertion.addMethod('foo', fn);
         *
         * Then can be used as any other assertion.
         *
         *     expect(fooStr).to.be.foo('bar');
         *
         * @param {Object} ctx object to which the method is added
         * @param {String} name of method to add
         * @param {Function} method function to be used for name
         * @name addMethod
         * @api public
         */

        module.exports = function (ctx, name, method) {
            ctx[name] = function () {
                var result = method.apply(this, arguments);
                return result === undefined ? this : result;
            };
        };

    }); // module: utils/addMethod.js

    require.register("utils/addProperty.js", function(module, exports, require){
        /*!
         * Chai - addProperty utility
         * Copyright(c) 2012 Jake Luer <jake@alogicalparadox.com>
         * MIT Licensed
         */

        /**
         * ### addProperty (ctx, name, getter)
         *
         * Adds a property to the prototype of an object.
         *
         *     utils.addProperty(chai.Assertion.prototype, 'foo', function () {
 *       var obj = utils.flag(this, 'object');
 *       new chai.Assertion(obj).to.be.instanceof(Foo);
 *     });
         *
         * Can also be accessed directly from `chai.Assertion`.
         *
         *     chai.Assertion.addProperty('foo', fn);
         *
         * Then can be used as any other assertion.
         *
         *     expect(myFoo).to.be.foo;
         *
         * @param {Object} ctx object to which the property is added
         * @param {String} name of property to add
         * @param {Function} getter function to be used for name
         * @name addProperty
         * @api public
         */

        module.exports = function (ctx, name, getter) {
            Object.defineProperty(ctx, name,
                { get: function () {
                    var result = getter.call(this);
                    return result === undefined ? this : result;
                }
                    , configurable: true
                });
        };

    }); // module: utils/addProperty.js

    require.register("utils/eql.js", function(module, exports, require){
// This is directly from Node.js assert
// https://github.com/joyent/node/blob/f8c335d0caf47f16d31413f89aa28eda3878e3aa/lib/assert.js


        module.exports = _deepEqual;

// For browser implementation
        if (!Buffer) {
            var Buffer = {
                isBuffer: function () {
                    return false;
                }
            };
        }

        function _deepEqual(actual, expected) {
            // 7.1. All identical values are equivalent, as determined by ===.
            if (actual === expected) {
                return true;

            } else if (Buffer.isBuffer(actual) && Buffer.isBuffer(expected)) {
                if (actual.length != expected.length) return false;

                for (var i = 0; i < actual.length; i++) {
                    if (actual[i] !== expected[i]) return false;
                }

                return true;

                // 7.2. If the expected value is a Date object, the actual value is
                // equivalent if it is also a Date object that refers to the same time.
            } else if (actual instanceof Date && expected instanceof Date) {
                return actual.getTime() === expected.getTime();

                // 7.3. Other pairs that do not both pass typeof value == 'object',
                // equivalence is determined by ==.
            } else if (typeof actual != 'object' && typeof expected != 'object') {
                return actual === expected;

                // 7.4. For all other Object pairs, including Array objects, equivalence is
                // determined by having the same number of owned properties (as verified
                // with Object.prototype.hasOwnProperty.call), the same set of keys
                // (although not necessarily the same order), equivalent values for every
                // corresponding key, and an identical 'prototype' property. Note: this
                // accounts for both named and indexed properties on Arrays.
            } else {
                return objEquiv(actual, expected);
            }
        }

        function isUndefinedOrNull(value) {
            return value === null || value === undefined;
        }

        function isArguments(object) {
            return Object.prototype.toString.call(object) == '[object Arguments]';
        }

        function objEquiv(a, b) {
            if (isUndefinedOrNull(a) || isUndefinedOrNull(b))
                return false;
            // an identical 'prototype' property.
            if (a.prototype !== b.prototype) return false;
            //~~~I've managed to break Object.keys through screwy arguments passing.
            //   Converting to array solves the problem.
            if (isArguments(a)) {
                if (!isArguments(b)) {
                    return false;
                }
                a = pSlice.call(a);
                b = pSlice.call(b);
                return _deepEqual(a, b);
            }
            try {
                var ka = Object.keys(a),
                    kb = Object.keys(b),
                    key, i;
            } catch (e) {//happens when one is a string literal and the other isn't
                return false;
            }
            // having the same number of owned properties (keys incorporates
            // hasOwnProperty)
            if (ka.length != kb.length)
                return false;
            //the same set of keys (although not necessarily the same order),
            ka.sort();
            kb.sort();
            //~~~cheap key test
            for (i = ka.length - 1; i >= 0; i--) {
                if (ka[i] != kb[i])
                    return false;
            }
            //equivalent values for every corresponding key, and
            //~~~possibly expensive deep test
            for (i = ka.length - 1; i >= 0; i--) {
                key = ka[i];
                if (!_deepEqual(a[key], b[key])) return false;
            }
            return true;
        }
    }); // module: utils/eql.js

    require.register("utils/flag.js", function(module, exports, require){
        /*!
         * Chai - flag utility
         * Copyright(c) 2012 Jake Luer <jake@alogicalparadox.com>
         * MIT Licensed
         */

        /**
         * ### flag(object ,key, [value])
         *
         * Get or set a flag value on an object. If a
         * value is provided it will be set, else it will
         * return the currently set value or `undefined` if
         * the value is not set.
         *
         *     utils.flag(this, 'foo', 'bar'); // setter
         *     utils.flag(this, 'foo'); // getter, returns `bar`
         *
         * @param {Object} object (constructed Assertion
         * @param {String} key
         * @param {Mixed} value (optional)
         * @name flag
         * @api private
         */

        module.exports = function (obj, key, value) {
            var flags = obj.__flags || (obj.__flags = Object.create(null));
            if (arguments.length === 3) {
                flags[key] = value;
            } else {
                return flags[key];
            }
        };

    }); // module: utils/flag.js

    require.register("utils/getActual.js", function(module, exports, require){
        /*!
         * Chai - getActual utility
         * Copyright(c) 2012 Jake Luer <jake@alogicalparadox.com>
         * MIT Licensed
         */

        /**
         * # getActual(object, [actual])
         *
         * Returns the `actual` value for an Assertion
         *
         * @param {Object} object (constructed Assertion)
         * @param {Arguments} chai.Assertion.prototype.assert arguments
         */

        module.exports = function (obj, args) {
            var actual = args[4];
            return 'undefined' !== actual ? actual : obj.obj;
        };

    }); // module: utils/getActual.js

    require.register("utils/getMessage.js", function(module, exports, require){
        /*!
         * Chai - message composition utility
         * Copyright(c) 2012 Jake Luer <jake@alogicalparadox.com>
         * MIT Licensed
         */

        /*!
         * Module dependancies
         */

        var flag = require('./flag')
            , getActual = require('./getActual')
            , inspect = require('./inspect');

        /**
         * # getMessage(object, message, negateMessage)
         *
         * Construct the error message based on flags
         * and template tags. Template tags will return
         * a stringified inspection of the object referenced.
         *
         * Messsage template tags:
         * - `#{this}` current asserted object
         * - `#{act}` actual value
         * - `#{exp}` expected value
         *
         * @param {Object} object (constructed Assertion)
         * @param {Arguments} chai.Assertion.prototype.assert arguments
         */

        module.exports = function (obj, args) {
            var negate = flag(obj, 'negate')
                , val = flag(obj, 'object')
                , expected = args[3]
                , actual = getActual(obj, args)
                , msg = negate ? args[2] : args[1]
                , flagMsg = flag(obj, 'message');

            msg = msg || '';
            msg = msg
                .replace(/#{this}/g, inspect(val))
                .replace(/#{act}/g, inspect(actual))
                .replace(/#{exp}/g, inspect(expected));

            return flagMsg ? flagMsg + ': ' + msg : msg;
        };

    }); // module: utils/getMessage.js

    require.register("utils/getName.js", function(module, exports, require){
        /*!
         * Chai - getName utility
         * Copyright(c) 2012 Jake Luer <jake@alogicalparadox.com>
         * MIT Licensed
         */

        /**
         * # getName(func)
         *
         * Gets the name of a function, in a cross-browser way.
         *
         * @param {Function} a function (usually a constructor)
         */

        module.exports = function (func) {
            if (func.name) return func.name;

            var match = /^\s?function ([^(]*)\(/.exec(func);
            return match && match[1] ? match[1] : "";
        };

    }); // module: utils/getName.js

    require.register("utils/getPathValue.js", function(module, exports, require){
        /*!
         * Chai - getPathValue utility
         * Copyright(c) 2012 Jake Luer <jake@alogicalparadox.com>
         * @see https://github.com/logicalparadox/filtr
         * MIT Licensed
         */

        /**
         * ### .getPathValue(path, object)
         *
         * This allows the retrieval of values in an
         * object given a string path.
         *
         *     var obj = {
 *         prop1: {
 *             arr: ['a', 'b', 'c']
 *           , str: 'Hello'
 *         }
 *       , prop2: {
 *             arr: [ { nested: 'Universe' } ]
 *           , str: 'Hello again!'
 *         }
 *     }
         *
         * The following would be the results.
         *
         *     getPathValue('prop1.str', obj); // Hello
         *     getPathValue('prop1.att[2]', obj); // b
         *     getPathValue('prop2.arr[0].nested', obj); // Universe
         *
         * @param {String} path
         * @param {Object} object
         * @returns {Object} value or `undefined`
         * @name getPathValue
         * @api public
         */

        var getPathValue = module.exports = function (path, obj) {
            var parsed = parsePath(path);
            return _getPathValue(parsed, obj);
        };

        /*!
         * ## parsePath(path)
         *
         * Helper function used to parse string object
         * paths. Use in conjunction with `_getPathValue`.
         *
         *      var parsed = parsePath('myobject.property.subprop');
         *
         * ### Paths:
         *
         * * Can be as near infinitely deep and nested
         * * Arrays are also valid using the formal `myobject.document[3].property`.
         *
         * @param {String} path
         * @returns {Object} parsed
         * @api private
         */

        function parsePath (path) {
            var parts = path.split('.').filter(Boolean);
            return parts.map(function (value) {
                var re = /([A-Za-z0-9]+)\[(\d+)\]$/
                    , mArr = re.exec(value)
                    , val;
                if (mArr) val = { p: mArr[1], i: parseFloat(mArr[2]) };
                return val || value;
            });
        };

        /*!
         * ## _getPathValue(parsed, obj)
         *
         * Helper companion function for `.parsePath` that returns
         * the value located at the parsed address.
         *
         *      var value = getPathValue(parsed, obj);
         *
         * @param {Object} parsed definition from `parsePath`.
         * @param {Object} object to search against
         * @returns {Object|Undefined} value
         * @api private
         */

        function _getPathValue (parsed, obj) {
            var tmp = obj
                , res;
            for (var i = 0, l = parsed.length; i < l; i++) {
                var part = parsed[i];
                if (tmp) {
                    if ('object' === typeof part && tmp[part.p]) {
                        tmp = tmp[part.p][part.i];
                    } else {
                        tmp = tmp[part];
                    }
                    if (i == (l - 1)) res = tmp;
                } else {
                    res = undefined;
                }
            }
            return res;
        };

    }); // module: utils/getPathValue.js

    require.register("utils/index.js", function(module, exports, require){
        /*!
         * chai
         * Copyright(c) 2011 Jake Luer <jake@alogicalparadox.com>
         * MIT Licensed
         */

        /*!
         * Main exports
         */

        var exports = module.exports = {};

        /*!
         * test utility
         */

        exports.test = require('./test');

        /*!
         * message utility
         */

        exports.getMessage = require('./getMessage');

        /*!
         * actual utility
         */

        exports.getActual = require('./getActual');

        /*!
         * Inspect util
         */

        exports.inspect = require('./inspect');

        /*!
         * Flag utility
         */

        exports.flag = require('./flag');

        /*!
         * Flag transferring utility
         */

        exports.transferFlags = require('./transferFlags');

        /*!
         * Deep equal utility
         */

        exports.eql = require('./eql');

        /*!
         * Deep path value
         */

        exports.getPathValue = require('./getPathValue');

        /*!
         * Function name
         */

        exports.getName = require('./getName');

        /*!
         * add Property
         */

        exports.addProperty = require('./addProperty');

        /*!
         * add Method
         */

        exports.addMethod = require('./addMethod');

        /*!
         * overwrite Property
         */

        exports.overwriteProperty = require('./overwriteProperty');

        /*!
         * overwrite Method
         */

        exports.overwriteMethod = require('./overwriteMethod');

        /*!
         * Add a chainable method
         */

        exports.addChainableMethod = require('./addChainableMethod');


    }); // module: utils/index.js

    require.register("utils/inspect.js", function(module, exports, require){
// This is (almost) directly from Node.js utils
// https://github.com/joyent/node/blob/f8c335d0caf47f16d31413f89aa28eda3878e3aa/lib/util.js

        var getName = require('./getName');

        module.exports = inspect;

        /**
         * Echos the value of a value. Trys to print the value out
         * in the best way possible given the different types.
         *
         * @param {Object} obj The object to print out.
         * @param {Boolean} showHidden Flag that shows hidden (not enumerable)
         *    properties of objects.
         * @param {Number} depth Depth in which to descend in object. Default is 2.
         * @param {Boolean} colors Flag to turn on ANSI escape codes to color the
         *    output. Default is false (no coloring).
         */
        function inspect(obj, showHidden, depth, colors) {
            var ctx = {
                showHidden: showHidden,
                seen: [],
                stylize: function (str) { return str; }
            };
            return formatValue(ctx, obj, (typeof depth === 'undefined' ? 2 : depth));
        }

        function formatValue(ctx, value, recurseTimes) {
            // Provide a hook for user-specified inspect functions.
            // Check that value is an object with an inspect function on it
            if (value && typeof value.inspect === 'function' &&
                // Filter out the util module, it's inspect function is special
                value.inspect !== exports.inspect &&
                // Also filter out any prototype objects using the circular check.
                !(value.constructor && value.constructor.prototype === value)) {
                return value.inspect(recurseTimes);
            }

            // Primitive types cannot have properties
            var primitive = formatPrimitive(ctx, value);
            if (primitive) {
                return primitive;
            }

            // Look up the keys of the object.
            var visibleKeys = Object.keys(value);
            var keys = ctx.showHidden ? Object.getOwnPropertyNames(value) : visibleKeys;

            // Some type of object without properties can be shortcutted.
            // In IE, errors have a single `stack` property, or if they are vanilla `Error`,
            // a `stack` plus `description` property; ignore those for consistency.
            if (keys.length === 0 || (isError(value) && (
                (keys.length === 1 && keys[0] === 'stack') ||
                    (keys.length === 2 && keys[0] === 'description' && keys[1] === 'stack')
                ))) {
                if (typeof value === 'function') {
                    var name = getName(value);
                    var nameSuffix = name ? ': ' + name : '';
                    return ctx.stylize('[Function' + nameSuffix + ']', 'special');
                }
                if (isRegExp(value)) {
                    return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
                }
                if (isDate(value)) {
                    return ctx.stylize(Date.prototype.toUTCString.call(value), 'date');
                }
                if (isError(value)) {
                    return formatError(value);
                }
            }

            var base = '', array = false, braces = ['{', '}'];

            // Make Array say that they are Array
            if (isArray(value)) {
                array = true;
                braces = ['[', ']'];
            }

            // Make functions say that they are functions
            if (typeof value === 'function') {
                var n = value.name ? ': ' + value.name : '';
                base = ' [Function' + n + ']';
            }

            // Make RegExps say that they are RegExps
            if (isRegExp(value)) {
                base = ' ' + RegExp.prototype.toString.call(value);
            }

            // Make dates with properties first say the date
            if (isDate(value)) {
                base = ' ' + Date.prototype.toUTCString.call(value);
            }

            // Make error with message first say the error
            if (isError(value)) {
                return formatError(value);
            }

            if (keys.length === 0 && (!array || value.length == 0)) {
                return braces[0] + base + braces[1];
            }

            if (recurseTimes < 0) {
                if (isRegExp(value)) {
                    return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
                } else {
                    return ctx.stylize('[Object]', 'special');
                }
            }

            ctx.seen.push(value);

            var output;
            if (array) {
                output = formatArray(ctx, value, recurseTimes, visibleKeys, keys);
            } else {
                output = keys.map(function(key) {
                    return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array);
                });
            }

            ctx.seen.pop();

            return reduceToSingleString(output, base, braces);
        }


        function formatPrimitive(ctx, value) {
            switch (typeof value) {
                case 'undefined':
                    return ctx.stylize('undefined', 'undefined');

                case 'string':
                    var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '')
                        .replace(/'/g, "\\'")
                        .replace(/\\"/g, '"') + '\'';
                    return ctx.stylize(simple, 'string');

                case 'number':
                    return ctx.stylize('' + value, 'number');

                case 'boolean':
                    return ctx.stylize('' + value, 'boolean');
            }
            // For some reason typeof null is "object", so special case here.
            if (value === null) {
                return ctx.stylize('null', 'null');
            }
        }


        function formatError(value) {
            return '[' + Error.prototype.toString.call(value) + ']';
        }


        function formatArray(ctx, value, recurseTimes, visibleKeys, keys) {
            var output = [];
            for (var i = 0, l = value.length; i < l; ++i) {
                if (Object.prototype.hasOwnProperty.call(value, String(i))) {
                    output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
                        String(i), true));
                } else {
                    output.push('');
                }
            }
            keys.forEach(function(key) {
                if (!key.match(/^\d+$/)) {
                    output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
                        key, true));
                }
            });
            return output;
        }


        function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {
            var name, str;
            if (value.__lookupGetter__) {
                if (value.__lookupGetter__(key)) {
                    if (value.__lookupSetter__(key)) {
                        str = ctx.stylize('[Getter/Setter]', 'special');
                    } else {
                        str = ctx.stylize('[Getter]', 'special');
                    }
                } else {
                    if (value.__lookupSetter__(key)) {
                        str = ctx.stylize('[Setter]', 'special');
                    }
                }
            }
            if (visibleKeys.indexOf(key) < 0) {
                name = '[' + key + ']';
            }
            if (!str) {
                if (ctx.seen.indexOf(value[key]) < 0) {
                    if (recurseTimes === null) {
                        str = formatValue(ctx, value[key], null);
                    } else {
                        str = formatValue(ctx, value[key], recurseTimes - 1);
                    }
                    if (str.indexOf('\n') > -1) {
                        if (array) {
                            str = str.split('\n').map(function(line) {
                                return '  ' + line;
                            }).join('\n').substr(2);
                        } else {
                            str = '\n' + str.split('\n').map(function(line) {
                                return '   ' + line;
                            }).join('\n');
                        }
                    }
                } else {
                    str = ctx.stylize('[Circular]', 'special');
                }
            }
            if (typeof name === 'undefined') {
                if (array && key.match(/^\d+$/)) {
                    return str;
                }
                name = JSON.stringify('' + key);
                if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
                    name = name.substr(1, name.length - 2);
                    name = ctx.stylize(name, 'name');
                } else {
                    name = name.replace(/'/g, "\\'")
                        .replace(/\\"/g, '"')
                        .replace(/(^"|"$)/g, "'");
                    name = ctx.stylize(name, 'string');
                }
            }

            return name + ': ' + str;
        }


        function reduceToSingleString(output, base, braces) {
            var numLinesEst = 0;
            var length = output.reduce(function(prev, cur) {
                numLinesEst++;
                if (cur.indexOf('\n') >= 0) numLinesEst++;
                return prev + cur.length + 1;
            }, 0);

            if (length > 60) {
                return braces[0] +
                    (base === '' ? '' : base + '\n ') +
                    ' ' +
                    output.join(',\n  ') +
                    ' ' +
                    braces[1];
            }

            return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
        }

        function isArray(ar) {
            return Array.isArray(ar) ||
                (typeof ar === 'object' && objectToString(ar) === '[object Array]');
        }

        function isRegExp(re) {
            return typeof re === 'object' && objectToString(re) === '[object RegExp]';
        }

        function isDate(d) {
            return typeof d === 'object' && objectToString(d) === '[object Date]';
        }

        function isError(e) {
            return typeof e === 'object' && objectToString(e) === '[object Error]';
        }

        function objectToString(o) {
            return Object.prototype.toString.call(o);
        }

    }); // module: utils/inspect.js

    require.register("utils/overwriteMethod.js", function(module, exports, require){
        /*!
         * Chai - overwriteMethod utility
         * Copyright(c) 2012 Jake Luer <jake@alogicalparadox.com>
         * MIT Licensed
         */

        /**
         * ### overwriteMethod (ctx, name, fn)
         *
         * Overwites an already existing method and provides
         * access to previous function. Must return function
         * to be used for name.
         *
         *     utils.overwriteMethod(chai.Assertion.prototype, 'equal', function (_super) {
 *       return function (str) {
 *         var obj = utils.flag(this, 'object');
 *         if (obj instanceof Foo) {
 *           new chai.Assertion(obj.value).to.equal(str);
 *         } else {
 *           _super.apply(this, arguments);
 *         }
 *       }
 *     });
         *
         * Can also be accessed directly from `chai.Assertion`.
         *
         *     chai.Assertion.overwriteMethod('foo', fn);
         *
         * Then can be used as any other assertion.
         *
         *     expect(myFoo).to.equal('bar');
         *
         * @param {Object} ctx object whose method is to be overwritten
         * @param {String} name of method to overwrite
         * @param {Function} method function that returns a function to be used for name
         * @name overwriteMethod
         * @api public
         */

        module.exports = function (ctx, name, method) {
            var _method = ctx[name]
                , _super = function () { return this; };

            if (_method && 'function' === typeof _method)
                _super = _method;

            ctx[name] = function () {
                var result = method(_super).apply(this, arguments);
                return result === undefined ? this : result;
            }
        };

    }); // module: utils/overwriteMethod.js

    require.register("utils/overwriteProperty.js", function(module, exports, require){
        /*!
         * Chai - overwriteProperty utility
         * Copyright(c) 2012 Jake Luer <jake@alogicalparadox.com>
         * MIT Licensed
         */

        /**
         * ### overwriteProperty (ctx, name, fn)
         *
         * Overwites an already existing property getter and provides
         * access to previous value. Must return function to use as getter.
         *
         *     utils.overwriteProperty(chai.Assertion.prototype, 'ok', function (_super) {
 *       return function () {
 *         var obj = utils.flag(this, 'object');
 *         if (obj instanceof Foo) {
 *           new chai.Assertion(obj.name).to.equal('bar');
 *         } else {
 *           _super.call(this);
 *         }
 *       }
 *     });
         *
         *
         * Can also be accessed directly from `chai.Assertion`.
         *
         *     chai.Assertion.overwriteProperty('foo', fn);
         *
         * Then can be used as any other assertion.
         *
         *     expect(myFoo).to.be.ok;
         *
         * @param {Object} ctx object whose property is to be overwritten
         * @param {String} name of property to overwrite
         * @param {Function} getter function that returns a getter function to be used for name
         * @name overwriteProperty
         * @api public
         */

        module.exports = function (ctx, name, getter) {
            var _get = Object.getOwnPropertyDescriptor(ctx, name)
                , _super = function () {};

            if (_get && 'function' === typeof _get.get)
                _super = _get.get

            Object.defineProperty(ctx, name,
                { get: function () {
                    var result = getter(_super).call(this);
                    return result === undefined ? this : result;
                }
                    , configurable: true
                });
        };

    }); // module: utils/overwriteProperty.js

    require.register("utils/test.js", function(module, exports, require){
        /*!
         * Chai - test utility
         * Copyright(c) 2012 Jake Luer <jake@alogicalparadox.com>
         * MIT Licensed
         */

        /*!
         * Module dependancies
         */

        var flag = require('./flag');

        /**
         * # test(object, expression)
         *
         * Test and object for expression.
         *
         * @param {Object} object (constructed Assertion)
         * @param {Arguments} chai.Assertion.prototype.assert arguments
         */

        module.exports = function (obj, args) {
            var negate = flag(obj, 'negate')
                , expr = args[0];
            return negate ? !expr : expr;
        };

    }); // module: utils/test.js

    require.register("utils/transferFlags.js", function(module, exports, require){
        /*!
         * Chai - transferFlags utility
         * Copyright(c) 2012 Jake Luer <jake@alogicalparadox.com>
         * MIT Licensed
         */

        /**
         * ### transferFlags(assertion, object, includeAll = true)
         *
         * Transfer all the flags for `assertion` to `object`. If
         * `includeAll` is set to `false`, then the base Chai
         * assertion flags (namely `object`, `ssfi`, and `message`)
         * will not be transferred.
         *
         *
         *     var newAssertion = new Assertion();
         *     utils.transferFlags(assertion, newAssertion);
         *
         *     var anotherAsseriton = new Assertion(myObj);
         *     utils.transferFlags(assertion, anotherAssertion, false);
         *
         * @param {Assertion} assertion the assertion to transfer the flags from
         * @param {Object} object the object to transfer the flags too; usually a new assertion
         * @param {Boolean} includeAll
         * @name getAllFlags
         * @api private
         */

        module.exports = function (assertion, object, includeAll) {
            var flags = assertion.__flags || (assertion.__flags = Object.create(null));

            if (!object.__flags) {
                object.__flags = Object.create(null);
            }

            includeAll = arguments.length === 3 ? includeAll : true;

            for (var flag in flags) {
                if (includeAll ||
                    (flag !== 'object' && flag !== 'ssfi' && flag != 'message')) {
                    object.__flags[flag] = flags[flag];
                }
            }
        };

    }); // module: utils/transferFlags.js


    return require('chai');
});